public IEnumerator StartPlayback(int generation)
{
var lastSimulatedGeneration = evolution.SimulationData.BestCreatures.Count;
if (generation < 1 || generation > lastSimulatedGeneration)
{
Debug.LogError(string.Format("Attempted to show invalid generation: {0}. Simulated up to {1}", generation, lastSimulatedGeneration));
yield break;
}
if (this.playbackScene != null && this.playbackScene.IsValid())
{
yield return(SceneController.UnloadAsync(this.playbackScene));
}
this.CurrentGeneration = generation;
var sceneLoadConfig = new SceneController.SimulationSceneLoadConfig(
this.evolution.SimulationData.CreatureDesign,
1,
this.evolution.SimulationData.SceneDescription,
SceneController.SimulationSceneType.BestCreatures,
evolution.GetLegacySimulationOptions()
);
var context = new SceneController.SimulationSceneLoadContext();
var sceneContext = new PlaybackSceneContext(this.evolution.SimulationData, this);
yield return(SceneController.LoadSimulationScene(sceneLoadConfig, context, sceneContext));
this.physicsScene = context.PhysicsScene;
this.playbackScene = context.Scene;
var chromosome = evolution.SimulationData.BestCreatures[generation - 1].Chromosome;
this.CurrentBest = context.Creatures[0];
evolution.ApplyBrain(this.CurrentBest, chromosome);
trackedCamera.Target = this.CurrentBest;
this.CurrentBest.SetOnBestCreatureLayer();
this.CurrentBest.Alive = false;
this.CurrentBest.gameObject.SetActive(false);
this.CurrentBest.Alive = true;
this.CurrentBest.gameObject.SetActive(true);
AutoPlay();
if (PlaybackDidBegin != null)
{
PlaybackDidBegin();
}
}
private IEnumerator SimulateGeneration()
{
var solutions = new Solution[Settings.PopulationSize];
var solutionIndex = 0;
// Prepare batch simulation
int actualBatchSize = Settings.SimulateInBatches ? Settings.BatchSize : Settings.PopulationSize;
int numberOfBatches = (int)Math.Ceiling((double)this.Settings.PopulationSize / actualBatchSize);
int firstChromosomeIndex = 0;
// Cache values that can be changed during the simulation
this.cachedSettings = this.Settings;
if (NewGenerationDidBegin != null)
{
NewGenerationDidBegin();
}
for (int i = 0; i < numberOfBatches; i++)
{
this.currentBatchNumber = i + 1;
int remainingCreatures = Settings.PopulationSize - (i * actualBatchSize);
int currentBatchSize = Math.Min(actualBatchSize, remainingCreatures);
var sceneLoadConfig = new SceneController.SimulationSceneLoadConfig(
this.SimulationData.CreatureDesign,
currentBatchSize,
this.SimulationData.SceneDescription,
SceneController.SimulationSceneType.Simulation,
GetLegacySimulationOptions()
);
var context = new SceneController.SimulationSceneLoadContext();
var sceneContext = new SimulationSceneContext(this.SimulationData);
yield return(SceneController.LoadSimulationScene(sceneLoadConfig, context, sceneContext));
this.batchPhysicsScene = context.PhysicsScene;
var batch = context.Creatures;
this.currentCreatureBatch = batch;
var chromosomeCount = Math.Min(this.SimulationData.CurrentChromosomes.Length, batch.Length);
var chromosomes = new float[chromosomeCount][];
for (int c = 0; c < chromosomeCount; c++)
{
chromosomes[c] = this.SimulationData.CurrentChromosomes[c + firstChromosomeIndex];
}
firstChromosomeIndex += batch.Length;
ApplyBrains(batch, chromosomes);
yield return(SimulateBatch());
// Evaluate creatures and destroy the scene after extracting all
// required performance statistics
for (int j = 0; j < batch.Length; j++)
{
var creature = batch[j];
solutions[solutionIndex++] = new Solution()
{
Encodable = creature.brain.Network,
Stats = creature.GetStatistics(this.cachedSettings.SimulationTime)
};
}
yield return(SceneManager.UnloadSceneAsync(context.Scene));
}
EvaluateSolutions(solutions);
}